AboutCAJUNSC/RAMBLER390 Expertise 1998 and NEWER questions ONLY!! I WILL REJECT QUESTIONS FROM 1998 BACK. Electrical diagnosis. Brake Diagnosis. Driveability, Service Engine Soon Lights. Some Engine mechanical. Tires and wheels. ABS. HVAC. Air Bag (SIR). Interior, seats, etc... 6.6L Duramax Diesel diagnosis. 6.5L diesel diagnosis. I WILL not answer Alignment questions OR carburetor questions. No heavy internal transmission
I need YEAR, MAKE and MODEL of vehicle, and ENGINE SIZE and TRANSMISSION type, IF applicable to the question.
I work at a Large, Busy GM Dealership
Last thing, my answers are JUST SUGGESTIONS and ADVICE and you should ALWAYS CHECK with your mechanic for proper diagnosis and repair.
Experience 18 Years GM Dealership experience as an "A" line tech. ASE MasterTechnician. 100% GM certified MTC Certified.
Education/Credentials High School graduate. No College or higher learning.
Question The family and I went to the mall tonight. Came back to the Denali and she would not start. We are the sole owners and have taken VERY good care of this excellent vehicle. I called OnStar; but the vehicle cranked up after 40 minutes of wait time. On the way home, noticed that VERY hot air blows from driver's side; cool air from PAX side when A/C is on. Got home, parked in garage; re-tried to start the SUV; no joy. My pops retired from Saginaw Steering Gear; thus I am a HUGE GM fan. Should I pull fuses; reset via battery terminal removal; or just suck it up and take it to the dealership for computer analysis (provided I can get 'er to start).
UPDATE: I took off and re-attached the negative battery cable; fixed the aircon problem. However, I had to get a boost to charge the battery. After driving the vehicle for 40 minutes, I backed into the garage, turned it off. The vehicle would not start immediately afterwards... only clicking noises. Ideas?
Answer Hi
Sounds like a classic battery failure.
I am SURE it will just be a battery. You can take the battery out, and take it to a parts chain store (auto Zone, Napa, etc...) and have it checked. After replacing battery, take the truck to the same store, and have the charging system double checked, just to be safe.
I hope this helps
Pawl.
